src/stubs/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frame.cpp
   3 // Purpose:     wxFrame
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "frame.h"
  14 #endif
  15
  16 #include "wx/frame.h"
  17 #include "wx/statusbr.h"
  18 #include "wx/toolbar.h"
  19 #include "wx/menuitem.h"
  20 #include "wx/menu.h"
  21 #include "wx/dcclient.h"
  22 #include "wx/dialog.h"
  23 #include "wx/settings.h"
  24 #include "wx/app.h"
  25
  26 extern wxList wxModelessWindows;
  27 extern wxList wxPendingDelete;
  28
  29 #if !USE_SHARED_LIBRARY
  30 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  31   EVT_SIZE(wxFrame::OnSize)
  32   EVT_ACTIVATE(wxFrame::OnActivate)
  33   EVT_MENU_HIGHLIGHT_ALL(wxFrame::OnMenuHighlight)
  34   EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
  35   EVT_IDLE(wxFrame::OnIdle)
  36   EVT_CLOSE(wxFrame::OnCloseWindow)
  37 END_EVENT_TABLE()
  38
  39 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxWindow)
  40 #endif
  41
  42 #if wxUSE_NATIVE_STATUSBAR
  43 bool wxFrame::m_useNativeStatusBar = TRUE;
  44 #else
  45 bool wxFrame::m_useNativeStatusBar = FALSE;
  46 #endif
  47
  48 wxFrame::wxFrame()
  49 {
  50   m_frameToolBar = NULL ;
  51   m_frameMenuBar = NULL;
  52   m_frameStatusBar = NULL;
  53
  54   m_windowParent = NULL;
  55   m_iconized = FALSE;
  56 }
  57
  58 bool wxFrame::Create(wxWindow *parent,
  59            wxWindowID id,
  60            const wxString& title,
  61            const wxPoint& pos,
  62            const wxSize& size,
  63            long style,
  64            const wxString& name)
  65 {
  66   if (!parent)
  67     wxTopLevelWindows.Append(this);
  68
  69   SetName(name);
  70   m_windowStyle = style;
  71   m_frameMenuBar = NULL;
  72   m_frameToolBar = NULL ;
  73   m_frameStatusBar = NULL;
  74
  75   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
  76
  77   if ( id > -1 )
  78     m_windowId = id;
  79   else
  80     m_windowId = (int)NewControlId();
  81
  82   if (parent) parent->AddChild(this);
  83
  84   wxModelessWindows.Append(this);
  85
  86   // TODO: create frame.
  87
  88   return FALSE;
  89 }
  90
  91 wxFrame::~wxFrame()
  92 {
  93   wxTopLevelWindows.DeleteObject(this);
  94
  95   if (m_frameStatusBar)
  96     delete m_frameStatusBar;
  97   if (m_frameMenuBar)
  98     delete m_frameMenuBar;
  99
 100 /* Check if it's the last top-level window */
 101
 102   if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 103   {
 104     wxTheApp->SetTopWindow(NULL);
 105
 106     if (wxTheApp->GetExitOnFrameDelete())
 107     {
 108        // TODO signal to the app that we're going to close
 109     }
 110   }
 111
 112   wxModelessWindows.DeleteObject(this);
 113 }
 114
 115 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 116 void wxFrame::GetClientSize(int *x, int *y) const
 117 {
 118     // TODO
 119 }
 120
 121 // Set the client size (i.e. leave the calculation of borders etc.
 122 // to wxWindows)
 123 void wxFrame::SetClientSize(int width, int height)
 124 {
 125     // TODO
 126 }
 127
 128 void wxFrame::GetSize(int *width, int *height) const
 129 {
 130     // TODO
 131 }
 132
 133 void wxFrame::GetPosition(int *x, int *y) const
 134 {
 135     // TODO
 136 }
 137
 138 void wxFrame::SetSize(int x, int y, int width, int height, int sizeFlags)
 139 {
 140     // TODO
 141 }
 142
 143 bool wxFrame::Show(bool show)
 144 {
 145     // TODO
 146     return FALSE;
 147 }
 148
 149 void wxFrame::Iconize(bool iconize)
 150 {
 151     // TODO
 152 }
 153
 154 // Equivalent to maximize/restore in Windows
 155 void wxFrame::Maximize(bool maximize)
 156 {
 157     // TODO
 158 }
 159
 160 bool wxFrame::IsIconized() const
 161 {
 162     // TODO
 163     return FALSE;
 164 }
 165
 166 void wxFrame::SetTitle(const wxString& title)
 167 {
 168     // TODO
 169 }
 170
 171 wxString wxFrame::GetTitle() const
 172 {
 173     // TODO
 174     return wxString("");
 175 }
 176
 177 void wxFrame::SetIcon(const wxIcon& icon)
 178 {
 179   m_icon = icon;
 180   // TODO
 181 }
 182
 183 wxStatusBar *wxFrame::OnCreateStatusBar(int number, long style, wxWindowID id,
 184     const wxString& name)
 185 {
 186     wxStatusBar *statusBar = NULL;
 187
 188     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20),
 189         style, name);
 190
 191     // Set the height according to the font and the border size
 192     wxClientDC dc(statusBar);
 193     dc.SetFont(* statusBar->GetFont());
 194
 195     long x, y;
 196     dc.GetTextExtent("X", &x, &y);
 197
 198     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 199
 200     statusBar->SetSize(-1, -1, 100, height);
 201
 202     statusBar->SetFieldsCount(number);
 203     return statusBar;
 204 }
 205
 206 wxStatusBar* wxFrame::CreateStatusBar(int number, long style, wxWindowID id,
 207     const wxString& name)
 208 {
 209   // Calling CreateStatusBar twice is an error.
 210   wxCHECK_MSG( m_frameStatusBar == NULL, FALSE,
 211                "recreating status bar in wxFrame" );
 212
 213   m_frameStatusBar = OnCreateStatusBar(number, style, id,
 214     name);
 215   if ( m_frameStatusBar )
 216   {
 217     PositionStatusBar();
 218     return m_frameStatusBar;
 219   }
 220   else
 221     return NULL;
 222 }
 223
 224 void wxFrame::SetStatusText(const wxString& text, int number)
 225 {
 226   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 227
 228   m_frameStatusBar->SetStatusText(text, number);
 229 }
 230
 231 void wxFrame::SetStatusWidths(int n, const int widths_field[])
 232 {
 233   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 234
 235   m_frameStatusBar->SetStatusWidths(n, widths_field);
 236   PositionStatusBar();
 237 }
 238
 239 void wxFrame::PositionStatusBar()
 240 {
 241     int w, h;
 242     GetClientSize(&w, &h);
 243     int sw, sh;
 244     m_frameStatusBar->GetSize(&sw, &sh);
 245
 246     // Since we wish the status bar to be directly under the client area,
 247     // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 248     m_frameStatusBar->SetSize(0, h, w, sh);
 249 }
 250
 251 void wxFrame::SetMenuBar(wxMenuBar *menuBar)
 252 {
 253     if (!menuBar)
 254     {
 255         m_frameMenuBar = NULL;
 256         return;
 257     }
 258
 259     m_frameMenuBar = menuBar;
 260
 261     // TODO
 262 }
 263
 264 void wxFrame::Fit()
 265 {
 266   // Work out max. size
 267   wxNode *node = GetChildren()->First();
 268   int max_width = 0;
 269   int max_height = 0;
 270   while (node)
 271   {
 272     // Find a child that's a subwindow, but not a dialog box.
 273     wxWindow *win = (wxWindow *)node->Data();
 274
 275     if (!win->IsKindOf(CLASSINFO(wxFrame)) &&
 276          !win->IsKindOf(CLASSINFO(wxDialog)))
 277     {
 278       int width, height;
 279       int x, y;
 280       win->GetSize(&width, &height);
 281       win->GetPosition(&x, &y);
 282
 283       if ((x + width) > max_width)
 284         max_width = x + width;
 285       if ((y + height) > max_height)
 286         max_height = y + height;
 287     }
 288     node = node->Next();
 289   }
 290   SetClientSize(max_width, max_height);
 291 }
 292
 293 // Responds to colour changes, and passes event on to children.
 294 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 295 {
 296     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
 297     Refresh();
 298
 299     if ( m_frameStatusBar )
 300     {
 301         wxSysColourChangedEvent event2;
 302         event2.SetEventObject( m_frameStatusBar );
 303         m_frameStatusBar->ProcessEvent(event2);
 304     }
 305
 306     // Propagate the event to the non-top-level children
 307     wxWindow::OnSysColourChanged(event);
 308 }
 309
 310 // Default resizing behaviour - if only ONE subwindow,
 311 // resize to client rectangle size
 312 void wxFrame::OnSize(wxSizeEvent& event)
 313 {
 314   // if we're using constraints - do use them
 315   #if wxUSE_CONSTRAINTS
 316     if ( GetAutoLayout() ) {
 317       Layout();
 318       return;
 319     }
 320   #endif
 321
 322   // do we have _exactly_ one child?
 323   wxWindow *child = NULL;
 324   for ( wxNode *node = GetChildren()->First(); node; node = node->Next() )
 325   {
 326     wxWindow *win = (wxWindow *)node->Data();
 327     if ( !win->IsKindOf(CLASSINFO(wxFrame))  &&
 328          !win->IsKindOf(CLASSINFO(wxDialog)) &&
 329          (win != GetStatusBar()) &&
 330          (win != GetToolBar()) )
 331     {
 332       if ( child )
 333         return;     // it's our second subwindow - nothing to do
 334       child = win;
 335     }
 336   }
 337
 338   if ( child ) {
 339     // we have exactly one child - set it's size to fill the whole frame
 340     int clientW, clientH;
 341     GetClientSize(&clientW, &clientH);
 342
 343     int x = 0;
 344     int y = 0;
 345
 346     child->SetSize(x, y, clientW, clientH);
 347   }
 348 }
 349
 350 // Default activation behaviour - set the focus for the first child
 351 // subwindow found.
 352 void wxFrame::OnActivate(wxActivateEvent& event)
 353 {
 354   for(wxNode *node = GetChildren()->First(); node; node = node->Next())
 355   {
 356     // Find a child that's a subwindow, but not a dialog box.
 357     wxWindow *child = (wxWindow *)node->Data();
 358     if (!child->IsKindOf(CLASSINFO(wxFrame)) &&
 359          !child->IsKindOf(CLASSINFO(wxDialog)))
 360     {
 361 #if WXDEBUG > 1
 362       wxDebugMsg("wxFrame::OnActivate: about to set the child's focus.\n");
 363 #endif
 364       child->SetFocus();
 365       return;
 366     }
 367   }
 368 }
 369
 370 // The default implementation for the close window event - calls
 371 // OnClose for backward compatibility.
 372
 373 void wxFrame::OnCloseWindow(wxCloseEvent& event)
 374 {
 375     // Compatibility
 376     if ( GetEventHandler()->OnClose() || event.GetForce())
 377     {
 378         this->Destroy();
 379     }
 380 }
 381
 382 bool wxFrame::OnClose()
 383 {
 384     return TRUE;
 385 }
 386
 387 // Destroy the window (delayed, if a managed window)
 388 bool wxFrame::Destroy()
 389 {
 390   if (!wxPendingDelete.Member(this))
 391     wxPendingDelete.Append(this);
 392   return TRUE;
 393 }
 394
 395 // Default menu selection behaviour - display a help string
 396 void wxFrame::OnMenuHighlight(wxMenuEvent& event)
 397 {
 398   if (GetStatusBar())
 399   {
 400     if (event.GetMenuId() == -1)
 401       SetStatusText("");
 402     else
 403     {
 404       wxMenuBar *menuBar = GetMenuBar();
 405       if (menuBar)
 406       {
 407         wxString helpString(menuBar->GetHelpString(event.GetMenuId()));
 408         if (helpString != "")
 409           SetStatusText(helpString);
 410       }
 411     }
 412   }
 413 }
 414
 415 wxMenuBar *wxFrame::GetMenuBar() const
 416 {
 417   return m_frameMenuBar;
 418 }
 419
 420 void wxFrame::Centre(int direction)
 421 {
 422   int display_width, display_height, width, height, x, y;
 423   wxDisplaySize(&display_width, &display_height);
 424
 425   GetSize(&width, &height);
 426   GetPosition(&x, &y);
 427
 428   if (direction & wxHORIZONTAL)
 429     x = (int)((display_width - width)/2);
 430   if (direction & wxVERTICAL)
 431     y = (int)((display_height - height)/2);
 432
 433   SetSize(x, y, width, height);
 434 }
 435
 436 // Call this to simulate a menu command
 437 void wxFrame::Command(int id)
 438 {
 439   ProcessCommand(id);
 440 }
 441
 442 void wxFrame::ProcessCommand(int id)
 443 {
 444   wxCommandEvent commandEvent(wxEVENT_TYPE_MENU_COMMAND, id);
 445   commandEvent.SetInt( id );
 446   commandEvent.SetEventObject( this );
 447
 448   wxMenuBar *bar = GetMenuBar() ;
 449   if (!bar)
 450     return;
 451
 452 /* TODO: check the menu item if required
 453   wxMenuItem *item = bar->FindItemForId(id) ;
 454   if (item && item->IsCheckable())
 455   {
 456     bar->Check(id,!bar->Checked(id)) ;
 457   }
 458 */
 459
 460   GetEventHandler()->ProcessEvent(commandEvent);
 461 }
 462
 463 // Checks if there is a toolbar, and returns the first free client position
 464 wxPoint wxFrame::GetClientAreaOrigin() const
 465 {
 466     wxPoint pt(0, 0);
 467     if (GetToolBar())
 468     {
 469         int w, h;
 470         GetToolBar()->GetSize(& w, & h);
 471
 472         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 473         {
 474             pt.x += w;
 475         }
 476         else
 477         {
 478             pt.y += h;
 479         }
 480     }
 481     return pt;
 482 }
 483
 484 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 485 {
 486     wxCHECK_MSG( m_frameToolBar == NULL, FALSE,
 487                "recreating toolbar in wxFrame" );
 488
 489     wxToolBar* toolBar = OnCreateToolBar(style, id, name);
 490     if (toolBar)
 491     {
 492         SetToolBar(toolBar);
 493         PositionToolBar();
 494         return toolBar;
 495     }
 496     else
 497     {
 498         return NULL;
 499     }
 500 }
 501
 502 wxToolBar* wxFrame::OnCreateToolBar(long style, wxWindowID id, const wxString& name)
 503 {
 504     return new wxToolBar(this, id, wxDefaultPosition, wxDefaultSize, style, name);
 505 }
 506
 507 void wxFrame::PositionToolBar()
 508 {
 509     int cw, ch;
 510
 511     // TODO: we actually need to use the low-level client size, before
 512     // the toolbar/status bar were added.
 513     // So DEFINITELY replace the line below with something appropriate.
 514
 515     GetClientSize(& cw, &ch);
 516
 517     if ( GetStatusBar() )
 518     {
 519       int statusX, statusY;
 520       GetStatusBar()->GetClientSize(&statusX, &statusY);
 521       ch -= statusY;
 522     }
 523
 524     if (GetToolBar())
 525     {
 526         int tw, th;
 527         GetToolBar()->GetSize(& tw, & th);
 528
 529         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 530         {
 531             // Use the 'real' position. wxSIZE_NO_ADJUSTMENTS
 532             // means, pretend we don't have toolbar/status bar, so we
 533             // have the original client size.
 534             GetToolBar()->SetSize(0, 0, tw, ch, wxSIZE_NO_ADJUSTMENTS);
 535         }
 536         else
 537         {
 538             // Use the 'real' position
 539             GetToolBar()->SetSize(0, 0, cw, th, wxSIZE_NO_ADJUSTMENTS);
 540         }
 541     }
 542 }
 543